81907475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5861}}^1$

素因数の和:5927

約数の個数: 24

約数和(自身を含む): 111940752

約数和(自身を除く): 30033277

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 1075, 2795, 5861, 13975, 29305, 76193, 146525, 252023, 380965, 1260115, 1904825, 3276299, 6300575, 16381495, 81907475]

約数ペア:

[(1, 81907475), (5, 16381495), (13, 6300575), (25, 3276299), (43, 1904825), (65, 1260115), (215, 380965), (325, 252023), (559, 146525), (1075, 76193), (2795, 29305), (5861, 13975)]